21cm 60g 60g 37inch 26inch 21cm 47inch 2cm Features: environment-friendly materials/retractable design/special felt head/anti-skid handle 1. Stainless steel design, light and solid, anti-corrosion and rust proof, and long service life. Strong shaft with strong compression resistance. It is not easy to deform and break. 2.1m telescopic design, long enough, only after shrinking, easy to carry and store, suitable compatible with teaching, speech, command and other occasions. 3. The felt head has soft contact, which will not damage the screen. It can be used compatible with touch operation of infrared screen. The touch screen is sensitive and has small resistance. 4. The expansion joints are fixed with grooves, so there will be no shrinkage and shaking in use. 5. The overall weight of the product is only , and the center of gravity is close to the handle. It feels light and comfortable, and it is not tiring to use it compatible with a long time. Parameters: Material: stainless steel Weight: colour: red, black, blue, orange Application scope: blackboard, sand table, all-in-one machine, large screen electronic whiteboard/blackboard, infrared interactive electronic board, etc Purpose introduction: teacher teaching, sand table speech, blackboard/whiteboard instructions, battle command, etc Extension length: 39./(1m) Shrinkage length: 8./() Diameter: 0./(1.)